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[yuvi.ardekar1999@gmail.com]

I am working on propane refrigeration system and doing blowdown calculations for BDV on refrigerant accumulator.

The stream is 98% liquid..

I am confused in selecting the heat flux method type.

The peak load calculated using "Apply to liquid" method is around 495000 kg/hr whereas peak load calculated using "Apply to wetted wall" method is 811000 kg/hr which is almost doubled.

Can someone please explain about "Apply to wetted wall" method? Does the method considers fire to be "confined" or "partially confined"?
The default heat flux value is 100 kw/m2. How to calculate this value?

What is a general practice to when it comes to selecting the heat flux method.

I would be helpful if some study material is shared based on usage of "Apply to wetted wall" method.

Thank you